FFV's job system is taken from FF3 in the first place. If it's taken from an FF, it is from FF3. FF5 is the wrong answer no matter what.

But the job system in Tactics, especially the way classes grow, is taken from Tactics Ogre, which is taken from Ogre Battle.

No.

"After choosing which their characters will be, progress is made much similar to Final Fantasy V's method of accumulating AP and spending it on skills - which have further increased in number per Job and have multiple categories such as Movement Abilities and Reaction Abilities.

While Final Fantasy Tactics used Final Fantasy V's system of accumulating AP and spending it on a list of possible skills, Final Fantasy Tactics Advance has the character learn their skills from the equipment they are wearing (much like Final Fantasy IX, which in turn was much similar to Final Fantasy VI's Esper system)."

FFV's job system is taken from FF3 in the first place. If it's taken from an FF, it is from FF3. FF5 is the wrong answer no matter what.

But the job system in Tactics, especially the way classes grow, is taken from Tactics Ogre, which is taken from Ogre Battle.

No.

"After choosing which their characters will be, progress is made much similar to Final Fantasy V's method of accumulating AP and spending it on skills - which have further increased in number per Job and have multiple categories such as Movement Abilities and Reaction Abilities.

While Final Fantasy Tactics used Final Fantasy V's system of accumulating AP and spending it on a list of possible skills, Final Fantasy Tactics Advance has the character learn their skills from the equipment they are wearing (much like Final Fantasy IX, which in turn was much similar to Final Fantasy VI's Esper system)."

I don't care what a publically edited wikia says; the AP system is a fair point, but the point remains the FFV's job system is derived from FF3 in the first place, so any claims concerning FFV starting that system is wrong. You are wrong.

More, the class growth and the stat-based ability to switch from other classes is derived from Ogre Battle. Which makes sense, since the director of FFT is the guy who made Ogre Battle.